Oklahoma state context (ODEQ): backflow testing rules

Also

• OAC 252:626-5-15(a)(3) says a public water system design must not allow a cross-connection with any private water system. This is a design standard, not an annual test mandate. Source.
• OAC 252:631-3-17 (Water system connections) states the same prohibition in the PWS operation chapter. Source.
• OAC 252:626-5-15(a)(2): an RPZ backflow prevention device may be used in lieu of an air gap for connections to devices that pose a health threat. Source.
• OAC 252:626-5-15(f) requires piping design to follow the AWWA recommended practice for backflow prevention (M14, 3rd Ed, 2004). Applies to plant piping design, not customer assemblies. Source.

How to file your backflow test with Oklahoma state context

1. Read your notice. It names the assembly, its location and the date the report is due.
2. Book a tester Oklahoma state context accepts. See finding a tester below; book early so there is time to repair a failed assembly.
3. The tester tests the assembly and fills in the test report. A failed assembly is repaired and tested again.
4. The report is filed. Ask the tester how they send it to the utility, and get a copy.
5. Keep a copy and set a reminder for next year. Set a free test-due reminder.

Finding a tester Oklahoma state context accepts

We found no tester list on Oklahoma state context's own pages. Use a state certified tester, and check your notice in case it names the testers or the portal it accepts.

Before you book, ask the tester:

• Are you registered with Oklahoma state context?
• Will you send the test report to the utility for me, and how?
• When is my report due? The date is on your notice; the tester needs time to test, repair if needed and file.

Other water utilities in Oklahoma

• City of Norman Utilities
• City of Tulsa Water and Sewer Department

Read October 6, 2026. Program page: oklahoma.gov.